מחשב אלחוטי לאופניים עם מסך תצוגה של 1.4inch

Have you ever calculated how fast you can drive, or how long you drive everyday? May be you want to calculate, but you do not have such kind of tool, and the traditional watch is not so accurate. If so, you should pay special attention to this multifunction waterproof bike computer. This wireless cycle computer is so powerful in its functions. It can calculate the current speed, the maximum speed, the trip distance, the total distance, the average speed and so on.